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ATT Test 1 Exam Questions and Answers
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ATT Test 1 Exam Questions and Answers
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ATT Test 1 Exam Questions andAnswers
Electrical Shock - -Sensation and muscular spasm cause when electric
current passes through the body
-Voltage - -Potential of electric energy; pressure of electrons pushing away
from each other
-Current - -Flow of electrons
-Most dangerous paths - -Hand to hand & left hand to either foot
-Factors affecting shock - -Amount of current, path of current, amount of
body resistance, length of time current flows in body
-3 ways to prevent shock - -Isolate, insulate & ground
-Grounding conductor - -Used to form a low resistance path from the ground
to the metallic tool case
-12MA - -Minimum AC current required to cause severe muscle contractions
-The body - -Acts like a conductor when it becomes part of a circuit
-5xs - -How much more DC is required to freeze the body rather than AC
-Burns - -Electrical burns, arc burns, thermal contact burns
-Electrical burns - -Electrical current flowing through tissue or bones
-Arc burns - -High temperatures near the body produced by electric arc or
explosion
-Thermal contact burns - -When skin comes in contact with hot surfaces of
overheated electrical conductors
-Electrical Arcs - -Where short circuit occurs; may cause fires
-Extremely high arcs - -Damage equipment dispersing metal fragments
-Low energy arcs - -Explode containing flammable gas, vapors, or
combustible dusts
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